Maria Jelescu Dreyfus is CEO and founder of Ardinall Investment Management, which is an investment firm that works in “sustainable investing and resilient infrastructure.” Photo via ExxonMobil

An energy transition expert and investor has joined Houston-headquartered ExxonMobil Corp.’s board of directors.

Maria Jelescu Dreyfus is CEO and founder of Ardinall Investment Management, which is an investment firm that works in “sustainable investing and resilient infrastructure.”

She previously spent 15 years at Goldman Sachs as a portfolio manager and managing director in the Goldman Sachs Investment Partners Group that focused on energy, industrials, transportation and infrastructure investments across the capital structure.

She currently serves as a director on the board of Cadiz Inc. and on the board of CDPQ. She also works in the energy transition space as a director on several companies' boards.

“We welcome Maria to the ExxonMobil Board as the company executes its strategy to grow shareholder value by playing a critical role in a lower-emissions future, even as we continue to provide the reliable energy and products the world needs,” Joseph Hooley, lead independent director for Exxon Mobil Corporation, says in a news release. “Her deep financial background combined with her extensive work in sustainability will complement our Board’s existing skill set.”

Dreyfus is the vice chair of the advisory board of Columbia University’s Center on Global Energy Policy, and serves as co-chair of its Women in Energy program.

“With the close of our Pioneer merger, we gained a premier, tier-one Permian asset, exceptional talent and a new Board member who brings keen strategic insight,” says ExxonMobil Chairman and CEO Darren Woods in the release. “Our boardroom, shareholders and stakeholders will greatly benefit from Maria’s experience.”

By understanding the barriers they encounter, leaders, managers, and recruiters can implement targeted strategies to create more inclusive and diverse work environments. Photo via Getty Images

Houston expert analyzes women's role, challenges in the energy industry

guest column

The Women in Energy Global Study is an annual guide that delivers insights on how to retain female talent in a challenging world. It’s a critical roadmap for business leaders, managers, recruiters, and diversity and inclusion professionals to what women want, need, and can offer in the global energy workplace.

The report dives into the data to reveal the nature and aspirations of the female energy workforce. It explores the kids of jobs women are doing and the level of seniority that they are reaching, the career issues they face, what motivates them to contribute their skills to the energy transition and what they need to truly thrive.

The energy transition was a strong thread running through this year’s global survey with a commitment to Net Zero being the stand-out factor that attracts women to a company. Respondents came from an even greater variety of sectors and roles both within and outside the energy industry, reflecting the growing richness and complexity of energy today and the exciting new opportunities it offers.

This year's results showed that oil and gas is the largest employer of women, followed by renewables, and most respondents have reached middle-management level in their career. However, there are still more women than men at the bottom and more men at the top. Women are more likely to be in project management, while men are more likely to be in engineering, and only 6 percent of field services roles are held by women.

Work-life interface and flexibility

Employers appear to be rolling back some of the flexible working policies introduced during the COVID-19 pandemic yet offering options for where and when work is an important value proposition for any company wanting to attract and retain talent.

The good news is that most men and women feel they now have a good work life balance, a positive shift from last year when most said they didn't. Women said that better flexible working would make the most difference to work-life balance.

Attracting and developing diverse talent and helping women thrive

Companies’ commitment to DEI appears to be declining, a reversal in trend from previous years. If this is more than just lack of visibility of what has become "business as usual," then organizations need to remember that better DEI leads to better business performance and it is critical to communicate efforts in this area.

Key things women want from their employer are better professional development, sponsorship and mentoring, flexible working and the opportunity for job-share or part-time working, but there appears to be delivery gap between availability of policies and their uptake.

The demand for good paternity leave is huge among men – more than half said they wanted to see it introduced or improved – and this could be a gamechanger for both sexes. Additionally, a strong commitment to net zero still makes a company more attractive to both women and men. Other key factors for women when choosing their employer are an inclusive workplace culture, benefits and a commitment to DEI.

Time to pave the way

When we amplify the voices of women in the global energy market, we not only bring attention to the challenges they face but also highlight the vast potential they hold. By understanding the barriers they encounter, leaders, managers, and recruiters can implement targeted strategies to create more inclusive and diverse work environments. This not only benefits women in the industry but also fosters innovation and drives growth in our ever-evolving energy sector. As we pave the way for more opportunities and empowerment for women in energy, we are shaping a brighter and more sustainable future for all.

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Jayne Stewart is vice president of oil, gas and chemicals across the Gulf Coast region in the U.S. for NES Fircroft. She is based in Houston.

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Electric truck charging network expands to Houston-Dallas freight corridor

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Greenlane Infrastructure, an electric public charging station developer and operator, is expanding outside of its home state of California and into Texas.

The Santa Monica-based company plans to launch its high-power charging sites along the Dallas–Houston I-45 corridor, which is one of the highest-volume commercial trucking routes in the country, according to a news release from Greenlane.

The sites will feature 6-8 pull-through lanes with chargers supporting combined charging system (CCS) and megawatt charging system (MCS) connectors that allow electric truck drivers to recharge their vehicles during standard rest periods. They will also offer tractor parking and charging, as well as operations that will allow for overnight stops.

Drivers can reserve chargers in advance, monitor charging activity in real time, and manage billing from the Greenlane Edge platform.

“Our customers are making commitments to electrify their fleets, and they need a charging network that can grow alongside them,” Patrick Macdonald-King, CEO of Greenlane, said in the release. “This is the first leg of the Texas triangle, one of the more important freight arteries in the country, so bringing high-power charging there is the next logical step in building a network that serves how freight moves across America.”

Greenlane is also expanding across the West Coast, with five locations under development in California and Nevada. It opened its flagship Greenlane Center in Colton, California, in April 2025. The company plans to open locations in Blythe, California, and Port of Long Beach this year.

Greelane was founded in 2023 as a joint venture between Daimler Truck North America, NextEra Energy Resources and BlackRock. It has secured partnerships with electric long-haul truck developer Windrose Technology, Velocity Truck Centers and Volvo Trucks North America.

Houston startup lands $1B from Blackstone and Halliburton, plans acquisition

power deal

Houston-based power generation startup VoltaGrid has nailed down a $1 billion equity investment from asset management heavyweight Blackstone and Houston-based oilfield services provider Halliburton.

The investment comes in two forms:

  • A $775 million primary capital raise
  • A $225 million secondary capital purchase from existing investors

VoltaGrid, founded in 2020, provides behind-the-meter mobile power generation equipment for data centers, microgrids and industrial customers.

Aside from the $1 billion investment, VoltaGrid has agreed to buy Propell Energy Technology, a VoltaGrid supplier, for an undisclosed amount. Propell offers a natural gas power generation platform for AI data centers. VoltaGrid plans to add two manufacturing plants at Propell’s facilities in Granbury, a Dallas-Fort Worth suburb.

The investment and acquisition deals are expected to close in mid-2026.

Funds managed by Blackstone Tactical Opportunities are contributing to the $1 billion investment. William Nicholson, managing director of Blackstone, called VoltaGrid “a highly differentiated platform addressing one of the most important infrastructure needs of the AI era: reliable, rapidly deployable power. This investment is a strong example of Tac Opps’ focus on providing flexible, scaled capital to exceptional entrepreneurs and businesses operating in Blackstone’s highest-conviction investment themes.”

Nathan Ough, founder and CEO of VoltaGrid, said in a release that the Blackstone investment “is a powerful endorsement of the platform we have built and the role VoltaGrid is playing in delivering the energy infrastructure of the AI era.”

Last October, VoltaGrid and Halliburton said they had forged a partnership to supply power for data centers around the world, with the Middle East picked as the initial target. Two months later, the companies said they had arranged the manufacturing of 400 megawatts of natural gas power systems that’ll be delivered in 2028 to support new data centers in the Eastern Hemisphere.

Jeff Miller, president and CEO of Halliburton, said his company’s investment in VoltaGrid “reflects our shared focus on long-term solutions for the world’s most demanding power environments, and advances VoltaGrid’s ability to deliver reliable, distributed power at scale.”